Shuttle embroidery-machine.



R. ZAH-N, DECD.

A. RIETZSGH, ADMINISTRATOR. SHUTTLE EMBROIDERY MACHINE;

19 l 1 APPLIGATION EIL-ED OOT.2,1911. Patented Dec- 1' 3 SHEETS-$111131 1.

L 5 mm n fo'z @w $3313 in atta ning R. ZAHN, DEGD.

A. RIETZSGH, ADMIN ISTRATOR.

SHUTTLE EMBROIDERY MACHINE.

APPLICATION TILED OUT. 2, 1911.

Patented Dec. 1, 1914.

3 SHEBTS-SHEET 2.

Wtneoae o 53 mm: 1 110 z R. ZAHN, DEOD.

A. RIETZSGH, ADMINISTRATOR.

SHUTTLE EMBROIDERY MACHINE.

1,1 l a APPLIGATIOH FILED 0Ol.2, 1911. Patented 6060' 1,

3 SHEETSSHEET 8.

rotary motion through one of a series of gear sections 13 adapted to be lixed on a common shaft 15 arranged above the bracket 1 from the main shaft 01 the nia- 5 chino (not shown). .The common shaft 13 of the series of gears 13 when given an oscillating niotion will cause the said gears to carry along with them the corresponding parts 12 which by means and 11 will each intermittently engage the corresponding shuttles to oscillate the said shuttles according to the direction of rotation. r

My new shuttles of the Wheeler & Wilson 15 type are each inade ot SliOBlJ KIlBCdl (steel).-

'1 he same is pressed into the iorin of a shell. l-l which on its circumference is formed with a nose serving as a hook (Figs. 6'10) and a neck portion 36, the object of O which will be hereinafterfully specified. A cover 15 is hinged at 16 to the shell 14:, to be capable 01 being tilted into open position 15 as indicated by dotted lines in Fig. 5. From the center of the vaulted bottom of the bowl or shell l l, a,pin 17 rigidly secured thereto projects toward the cover and is slit almost throughout its entire length (Fig. l)

to allow ol'its being expanded so as to hold the bobbin l8 placed thereon from turnin The bobbin 18 is'wound around a small paper tube 19 and is made thicker in the center than around the ends. The free end 2% of the cover 15 when closed catches in a groove 25 (Fig. 5) in the upper margin of the shell 14: to lock the same in position. The cover as the shell 1%, is pressed or sheet steel so as to form a circular depression .and a circular shoulder 27 around said depression.

4o in linear extension of the pin 17 and concentric with the center of the-bobbin the cover 15 has a passage or hole 26 for the thread, which hole is in the center of the depressed surtace 28 of the cover 15. The

center of the bobbin which coincides with the center of the hole 26 is eccentric relative to the center 9.9 (Fig. 1) of the member 12. There are at certain points two other thread openings 30, 31 in the shoulder 27% Fastened at one end, as at to the depressed surface is a brake spring 32 made of thin The other end of said steel plate (Fig. .8). spring overlaps the thread portion located The pressure of the between 26 and 30.

f .spring on the thread may -be regulated by means of an ad ustable short linger 31- or the like fulcrunicd to a pin 3a. This not nccessary to term the shoulder)?? all around the depression in form of a closed ring. It suf- 5 liccs when parts ot'it are at the points where in Figs. 6 to 1'0 the thread 18 or the thread loop 23' passes over the shoulder.

denotes the stitch plate, Figs. 1-3 and 6-10. The ci'ubroidery surface is denoted by a dotted line ltr-di (Figs. 6-10).

of their pins 10.

The mode of operation is follows: After the needle 21 has pierced the fabric Iii-X. and entered through the hole in the stitch plate 35 at the side of the path of the oscillating shuttle, the needle thread loop 23 at the back of the fabric is formed 6--7 As the needle begins its return movement and while the shuttle oscillates in the direction of the arrow in Fig. 8., its hook point 20 is caused to slip through the loop 23, so that the latter engages around the neck 36 and while the SliLlLl G continues its rotation, the loop is ex anded (Fig. 8)., The needle 21 in the meantime has been withdrawn from the fabric. The shuttle thread 18 is conveyed from the bobbin through the passage 26, is then passed outward under the brake spring 32 through the openings 30, 31 made in the sl'ioulder 27. The shuttle thread 18 is now carried through the expanded loop 23, whereupon the needle thread 23 is drawn taut by Well known means (not shown) and the loop 23 slipping olf the shuttle is tightened, which completes the stitch (Fig. 9). The shuttle then rapidly swings back into its initial position (Fig. 10). Owing to the eccentrical posi tion of the passage 26 relative to the center of rotation of the shuttle so much shuttle thread will be drawn out from the shuttle during the return stroke oi the latter as be came necessary by the previous displacement of the embroidery frame.

For the undisturbed formation of a stitch and loop, it is very important that no protruding parts of the cover as 33, 3i that overlap the threads 18 and .23 catch or damage the latter. For this purpose, the shoulder 2? is provided. Apart from that, the shoulder 27 serves another purpose, to wit, to prevent the thread 18 which owing to its natural elasticity has the tendency to curl, from Winding around the needle point 21, which would result in the breaking of the needle. Of great importance for a uniform unwinding of the thread 18 is also the feature, that the thread passage or hole 26 coincides with the center of the bobbin, so that the thread unwinding from the latter al- ,7

ways finds unchanged resistances.

What 1 claim and desire to secure by Letters Patent is:

1. In an cnibroidering machine a plurality of vertically oscillating shuttles arranged in a row extending longitudinally of the machine and adjacent to one another, a

corresponding number of independent cas ings, one for each shuttle, and each casing liming a'reinovable section, a shuttle drivdng member in each casing and a common means for opera-ting said shuttle driving members. I

2. In an embroidering machine, a pluality of vertically oscillating shuttles, ar-

ranged in a row extending longitudinally oi:

the machine and adjacent to one another, a

bers.

corresponding numberof independent casings, one for each shuttle and each casing having a removable section, a shuttlc'driw ing member in each'casing, a driven memher, one for each driving member and a common means for operating said driven mem- 3. In an embroidering machine, a p1urality of vertically oscillating shuttles arranged adjacent ,to .one another longitudinally of the machine, a corresponding number of stationary's ectionai'casings forming raceways, one for each, shuttle, one section the same and the shuttles. 1

of each of said casings being removable, a

driven toothed member in each of said cas ings adapted to transmit motion to the shuttle in said casing, a common longitudinal oscillatory shaft and toothed members on said shaftengaging'with the corresponding toothed members in the casing to oscillate In testimony whereof I afiiiz my signature in presence of two Witnesses. v

ROBERT ZAHN. Witnesses: I

' LOUIS KINLER,

Rosnm: Hmnnxoi; Nmn. 

